I predict... um... rain? If I saw "clouds" like this I would be thinking End of Days... I'd be putting the family in the car with a few crucial belongings and driving the other way... FAST. This storm reminds me of sci-fi films where the alien ship is causing weather to cloak its arrival and the impending doom of the human species.
DEFINITION of this 4-syllable noun:
- the prediction of future events from observation of weather conditions.